Renesas Emulation Pod M37760T-RPD-E User Manual

Page 29

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(2) Changing the Internal Oscillator Circuit of the Emulation Pod

An oscillator circuit board for 16 MHz (for XIN) and 14.318 MHz (for OSCIN3) are mounted on the
emulation pod. To use the emulation pod at a frequency other than 16 MHz or 14.318 MHz, build the
desired oscillator circuit on the included OSC-2 oscillator circuit board (bare board) and replace the
board installed in the emulation pod when shipped from the factory.

Figure 3.5 shows an external view of the OSC-2 oscillator circuit board (bare board) and where
connector pins are located. Figure 3.6 shows the circuitry of the OSC-2 oscillator circuit board (bare
board). Use the number of oscillator circuits recommended by the oscillator manufacturer.

Figure 3.5 External view of the oscillator board (OSC-2) and connector pin assignment

J1-4: GND

Figure 3.6 Circuit of the oscillator board (OSC-2)

J1-3: Oscillator output

J1-2: GND

J1-1: VCC (5 V)

* X1: 5.08-mm-pitch 2-pin oscillator

IC1: Inverter (Unbuffer)

*

X2: 2.54-mm-pitch 2-pin oscillator

*

X3: 2.54-mm-pitch 3-pin oscillator

IC 1

R 1

C2

C 1

X 1 ,X 2

C LK

V cc

G N D

R 2

J1-3

10

11

8

9

2

1

4

3

6

5

12

13

C 3

IC 1

J1-1

J1-2

J1-4

G N D

IC 1

*

*

X 3

*

IC 1

14

7

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